WMS-CLIENT-HOWTO - No mention of MAP PROJECTION requirement

[dmorissette]

In order to avoid blank maps problems with the WMS Connectiontype, a projection 
at the MAP level is required.

There should be a mention about this at the beginning of section "Mapfile 
configuration":
"A PROJECTION must be set in the mapfile for the MAP unless you are sure that 
all your WMS layers support only a single projection which is the same as the 
PROJECTION of the map.  The MAP PROJECTION can be set using 
"init=epsg:xxxx" codes or using regular PROJ4 parameters.  Failure to set a MAP 
PROJECTION may result in blank maps coming from remote WMS servers (because of 
inconsistent BBOX+SRS combination being used in the WMS cnonection URL)."

[jmckenna@…]

The changes have been committed to CVS, and I have notified Jamie.